How small or large something is.
Size
As much as possible. 100%
Completely
View/Size
Earth is about the same () as Venus, but Jupiter is much larger.
Size
What did Galileo observe on the moon?
Mountains
Scientists used the Yerkes telescope to discover the () of the Milky Way galaxy.
A. Age
B. Size
C. Shape
Shape
To look at or see something.
View
To watch carefully in order to learn something.
Observe
Among/View
Saturn is () the largest planets in the solar system.
Among
Who discovered the planet Uranus?
William Herschel
The Yerkes Telescope is special because it's the () refracting telescope in the world.
A. Oldest
B. Largest
C. Lightest
Largest
To send back from a surface.
Reflect
To arrive at a place, level, or amount.
Reach
Reflect/Reach
Earth's atmosphere () some sunlight back into space.
Reflect
Which planet is the hottest?
Scientists used the Yerkes Telescope to discover the () of the Milky Way Galaxy.
A. Age
B. Size
C. Shape
Shape
Among
Part of a group.
Necessary
Needed for something else to happen.
Necessary/Completely
A large telescope is nice, but it's not () for viewing the moon.
Necessary
Which planet is the coldest?
Neptune
The observatory was built in the . . .
1890's
Discovered
Learned about or became aware of something.
Invented
Thought of or made something new.
Invented/Discovered
In 2009, scientists () a very large ring around Saturn. Our eyes can't see the ring, but the Spitzer Telescope uses special light to view it.
Discovered
Which planets have rings?
Jupiter, Saturn, Uranus, Neptune
Refracting telescopes use () to reflect light
Mirrors